By Meghan Holohan - We?ve all been there. There?s extra weight around the belly and it seems like the additional 10 pounds of padding won?t budge despite diet and workout. Dr. Mehmet Oz, M.D. told TODAY that events such as stress, the slowing of metabolism of middle age, and hormone changes after having a baby are three reasons why many people see the numbers on the scale going up. And, he shared a few tips to help shed those pounds.